US4234928A - X-ray diagnostic installation for x-ray photographs - Google Patents

X-ray diagnostic installation for x-ray photographs Download PDF

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Publication number
US4234928A
US4234928A US05/970,399 US97039978A US4234928A US 4234928 A US4234928 A US 4234928A US 97039978 A US97039978 A US 97039978A US 4234928 A US4234928 A US 4234928A
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United States
Prior art keywords
program
memory
correction
photographic
output
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Expired - Lifetime
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US05/970,399
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English (en)
Inventor
Rolf Pfeifer
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Siemens AG
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Siemens AG
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Publication date
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/46—Combined control of different quantities, e.g. exposure time as well as voltage or current
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/10—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches
    • G05B19/106—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches for selecting a programme, variable or parameter

Definitions

  • the invention relates to an x-ray diagnostic installation for x-ray photographs
  • a program control device for the photographic cycle which contains an electronic read-only memory for each photographic program, whose input is connected to a resettable pulse counter which is actuatable step-by-step via a clock pulse generator and which memory delivers program signals predetermined by its program that correspond to the output signals of the pulse counter, and wherein the outputs of all read-only memories are connected to the component parts they control via a program selector.
  • the object underlying the invention is to construct an x-ray diagnostic installation of the type initially cited in such manner that an alteration of a fixed program is quickly and simply possible.
  • a correction memory is connected in parallel to the read-only memories, to which correction memory, selecting means for the input of a correction program are connected; and in that a correction recognition memory targeted by the clock generator is connected to the program selection circuit, in which correction recognition memory the program steps to be corrected are storable and which, upon reaching such a program step, selects the correction memory in place of the respectively selected read-only memory.
  • the correction of individual program steps of a fixed program is possible in a simple manner via the correction memory.
  • the user need only input the new program for the program steps to be altered into the correction memory.
  • the correction recognition memory effects an automatic switch-over from the respectively selected read-only memory to the correction memory.
  • FIG. 1 is a view of an operating console of an x-ray diagnostic installation according to the invention.
  • FIG. 2 is the circuit diagram of an x-ray diagnostic installation according to the invention.
  • the operating desk comprises, in that part illustrated to the left of the dot-dash line, a plurality of organ keys 1 through 7, which permit the selection of the photographic exposure values for a photograph or photographic series respectively in an organ-programmed manner.
  • the operating console acts as an angiographic exposure installation for producing x-ray photographs in two planes in accordance with the operational chart 8 with the help of two serial film cameras.
  • the console also comprises indicators for displaying the respective x-ray tube voltages and further magnitudes.
  • FIG. 1 In the right hand part of the operating console, according to FIG. 1, there are twelve program keys 9 through 20, to which an indicator field 21 is allocated, in which field the program allocated to each key is indicated. Further, an indicator field 22 for the program number, an indicator field 23 for the respective point in time present since program initiation, an indicator field 24 for the respective image frequency, and an indicator field 25 for the film supply are provided. A start key 26 and a stop key 27 are provided for program monitoring. For the selection of the program initiation, a zero key 28 is provided. A program is manually sequenced by means of a step key 29.
  • keys 30 through 41 with symbols for the selectable values and magnitudes are provided, said keys having two functions, namely the one being to indicate the respective value at the check-out of the selected program and the other being to freely program any desired program when key 20 is depressed.
  • the freely programmed program is completely cancellable by means of cancel key 42.
  • a cancel key 43 is provided in order to cancel the respectively last freely programmed input value.
  • a start switch 45 is taken in hand from a supporting-mount device 44 where it hangs and its button 46 actuated.
  • the selected program now cycles automatically, i.e., first for example, a contrast agent injection is automatically carried out (key 38 lights up), then a photograph series ensues spanning two seconds with an image frequency of two images per second (key 32 lights up), then a table displacement ensues, etc.
  • the keys 30 through 41 then respectively light up.
  • step key 29 When key 20 is actuated, then it is possible to input any random photographic program by means of the step key 29. To this end, first the requisite values for the first program step (0. to 1. second) are input by means of the keys 30 through 41. Then the step key 29 is actuated and the requisite values are input for the second program step by means of keys 30 through 41, and so forth. In so doing, the cancel key 42 allows cancellation of the complete manually input program, whereas the cancel key 43 allows a cancellation of the last respective input program step.
  • a clock pulse generator 47 which supplies output pulses at the rate of one pulse per second to a gate circuit 48.
  • the output of the gate circuit 48 is connected to a sequence counter or resettable pulse counter 49.
  • the gate circuit 48 is activated by an AND circuit 50, at whose inputs the keys 26 and 27 as well as a film supply monitoring installation 51 and a film cassette monitoring installation 52 for sensing the presence of the collector cassette of the film camera are connected.
  • the AND circuit 50 closes the gate circuit 48 and the pulses of the clock pulse generator 47 are supplied to the sequence counter 49, i.e., the photographic program begins.
  • the sequence counter 49 delivers a signal at its output 53, which signal characterizes (e.g. by means of a binary coded decimal output in parallel, corresponding to the time shown at 22) the respective step and is supplied in parallel to a plurality of read-only memories whose number is equal to the number of program keys; in the sample embodiment this corresponds to ten program keys 10 through 19.
  • the output information of the sequence counter 49 characterizing the respective step and hence the respective number of seconds of elapsed time, effects that all read-only memories 54, 55, etc., deliver signals at their outputs that fix the photographic values corresponding to the respective time step; thus for example the image frequency of the film camera, the table position, the focus of the x-ray tube, etc.
  • a program selector circuit 56 Via a program selector circuit 56, only one of the memories 54, 55, etc., 58, 63 is actually connected to the output 57 that leads to the component parts that are to be controlled.
  • the program selector circuit 56 is connected to the program selector keys 9 through 20.
  • a freely programmable memory 58 is allocated to key 20, to which memory an intermediate storage 59 is connected.
  • the contents of memory 58 can be cancelled by means of cancel key 42, whereas the contents of the intermediate storage 59 can be cancelled by means of cancel key 43.
  • the step key 29 is likewise connected to the intermediate storage 59 and the sequence counter 49.
  • the keys 30 through 41 are also connected to the intermediate storage 59.
  • the desired value combination or data is input into the intermediate storage 59 by means of the keys 30 through 41.
  • the step key 29 is subsequently actuated, then the contents of the intermediate storage 59 is read via a change-over switch 61 positioned as indicated by the broken line into the memory 58 and this data is stored therein under the control of the sequence counter 49.
  • the next value combination assigned to the next program step can be input into the intermediate storage 59 by means of the keys 30 through 41.
  • this value combination is read into the memory 58, etc.
  • the entire contents of the memory 58 can be cancelled by actuating the cancel key 42, whereas the last respective input value combination can be cancelled by actuating the cancel switch 43.
  • a correction memory 60 is provided, which correction memory is likewise loaded step by step under the control of the output signals of the sequence counter 49 and is connectable to the output 57 in place of one of the memories 54, 55, etc., 58 by means of the program selection circuit 56.
  • the correction memory 60 can be programmed by means of the keys 30 through 41 and possesses a cancel input which is connected to a cancel key 62.
  • the cancel key 62 is also further connected to a correction recognition memory 63, which is loaded with a bit signal for identifying a correction program step (with respect to a fixed program sequence which is to be corrected).
  • the address at which the bit signal is stored is determined by means of the output signals of the sequence counter 49 and the stored correction bit signal then controls the program selection circuit 56 during an actual execution of the corrected program.
  • the correction recognition memory 63 can be set by means of a correction key 64.
  • the memories 60 and 63 thus, receive coded information from the sequence counter 49 which characterizes the momentary program step.
  • the program cycle is monitored by actuating start key 26, and then is stopped at the place of correction by means of the stop key 27, or the user keys himself forward to the place of correction via the step key 29.
  • switch 61 is actuated to the solid line position and the corrected information is input into the intermediate storage 59 via the keys 30 through 41.
  • the information residing in the intermediate storage 59 is transmitted into the correction memory 60 via the change-over switch 61 and stored at the current address being output by sequence counter 49.
  • the correction key 64 After input of the correction data, the correction key 64 is pressed and, by so doing, a correction bit for the corresponding address in the correction recognition memory 63 is set.
  • This correction bit makes it possible to recognize that a correction is to ensue for the corresponding program step and engages, via switch 56a of the program selection circuit 56, the correction memory 60 upon reaching this program step during a program cycle and disengages the selected read-only memories 54, 55, etc., or also the memory 58.
  • Correction memory 63 can be controlled by a gate circuit so that its content actuates program selector 56 only for a specifically selected read-only memory, or respective correction components such as 60-64 and 56a can be provided for respective read-only memories.
  • a fixed program can be corrected in the manner described at as many places as is desired. On account of this correctability of fixed programs, it is attained that the entire examination spectrum, for example for angiography, can be covered by a small number of fixed programs.
  • the data-input switch-over by means of the switch-over 61 serves the purpose that information coming from the keys 30 through 41 can be transmitted either into the correction memory 60 or into the freely programmable memory 58.
  • the switch 61 With the selection of the freely programmable memory 58, the switch 61 is switched over into the position indicated by a broken line by means of the program selection circuit 56 (in response to actuation of key 20). In the case of all other programs, the switch 61 assumes the position indicated by a heavy line.
  • Each read-only memory 54, 55, etc. can be a so-called PROM, i.e., a programmable read-only memory.
  • PROM programmable read-only memory
  • the freely programmable memory 58, the correction memory 60 and the correction recognition memory 63 can be a so-called RAM (random-access-memory).
  • FIG. 2 only two read-only memories 54, 55 are indicated. Of course, more read-only memories are present in the sample embodiment, namely ten. This is indicated by the broken line.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • X-Ray Techniques (AREA)
US05/970,399 1978-02-27 1978-12-18 X-ray diagnostic installation for x-ray photographs Expired - Lifetime US4234928A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782808288 DE2808288A1 (de) 1978-02-27 1978-02-27 Roentgendiagnostikeinrichtung fuer roentgenologische aufnahmen
DE2808288 1978-02-27

Publications (1)

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US4234928A true US4234928A (en) 1980-11-18

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US05/970,399 Expired - Lifetime US4234928A (en) 1978-02-27 1978-12-18 X-ray diagnostic installation for x-ray photographs

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US (1) US4234928A (de)
DE (1) DE2808288A1 (de)
FR (1) FR2418486A2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773086A (en) * 1983-12-16 1988-09-20 Yokogawa Medical Systems, Limited Operator console for X-ray tomographs
US5764560A (en) * 1995-09-29 1998-06-09 Samsung Electronics Co., Ltd. Apparatus and method for simultaneously reproducing multiple audio signals recorded on a semiconductor memory card
US20200105339A1 (en) * 2018-10-01 2020-04-02 Samsung Electronics Co., Ltd. X-ray detector, semiconductor memory device including the same, method of testing semiconductor memory device and method of manufacturing semiconductor memory device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3117153A1 (de) * 1981-04-30 1982-11-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Roentgengenerator zur durchfuehrung von aus einer folge von aufnahmeschritten bestehenden aufnahmeverfahren

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763364A (en) * 1971-11-26 1973-10-02 North American Rockwell Apparatus for storing and reading out periodic waveforms
US4021651A (en) * 1972-06-20 1977-05-03 Kawasaki Jukogyo Kabushiki Kaisha Programmed manipulator
US4137571A (en) * 1976-10-22 1979-01-30 Siemens Aktiengesellschaft Program control apparatus for the photographic operating sequence of an x-ray photographic installation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763364A (en) * 1971-11-26 1973-10-02 North American Rockwell Apparatus for storing and reading out periodic waveforms
US4021651A (en) * 1972-06-20 1977-05-03 Kawasaki Jukogyo Kabushiki Kaisha Programmed manipulator
US4137571A (en) * 1976-10-22 1979-01-30 Siemens Aktiengesellschaft Program control apparatus for the photographic operating sequence of an x-ray photographic installation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773086A (en) * 1983-12-16 1988-09-20 Yokogawa Medical Systems, Limited Operator console for X-ray tomographs
US5764560A (en) * 1995-09-29 1998-06-09 Samsung Electronics Co., Ltd. Apparatus and method for simultaneously reproducing multiple audio signals recorded on a semiconductor memory card
US20200105339A1 (en) * 2018-10-01 2020-04-02 Samsung Electronics Co., Ltd. X-ray detector, semiconductor memory device including the same, method of testing semiconductor memory device and method of manufacturing semiconductor memory device
US10984853B2 (en) * 2018-10-01 2021-04-20 Samsung Electronics Co., Ltd. X-ray detector, semiconductor memory device including the same, method of testing semiconductor memory device and method of manufacturing semiconductor memory device

Also Published As

Publication number Publication date
FR2418486B2 (de) 1983-04-08
FR2418486A2 (fr) 1979-09-21
DE2808288A1 (de) 1979-08-30

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